Method for the manufacture of igniting compositions for matches



uni'rsn stares PATENT amen OLOF JONATHAN MELLennN, or GOTTENBOBG, swnijnivj-l- METHOD iron THE manureorunn or ieniii-ne ooiurosrrions roaiuja'ronnsf masses. No Drawing.

To all an 710m it may concern 7 Be it known that I, OLOF JONATHAN"mLL of matches and has for its object to provide means for making such matches cheaper without interfering with their good character.

The present invention consists in a method to partly substitute one or more of the components of the igniting head of the match by a cheaper product, thereby maintaining or increasing the advantageous qualities of the head.

The igniting head of matches generally.

is composed partly by elements with high igniting properties (for instance potassium chlorate and similar substances) for starting the ignition, when the match is struck against the friction surface, partly by elements which fill up the composition and modify the kindling of the match, and partly by elements for binding the different components in the head. Besides there are present some mediums for saturating and coloring the head. 7

The filling substances must dilute the igniting composition, to obtain suitable inflammability. In other words the head of the match has to be inflammable without tendency to throw sparks. The binding substances must join the different components in the head together without decreasing the igniting ability. In order to obtain suitable ingredients for the head, it is necessary to use composing elements of the very best quality, which generally means a high price of manufacture.- It istherefore obvious, that, if one or more of the elements heretofore used could be substituted partly or wholly by elements of a cheaper product without. decreasing the high quality of the head, it would mean a considerable saving in costs.

It has heretofore, for instance in the Smith Patent No. 3773, been proposed to employ pulverized vegetable matters of all kinds,

such as wood, bark, etc, as a component in the igniting composition of friction matches,

Specification of Letters re aint. P tent d May 24, 1 21., Application filed November 11, 1919. Serial no. 357,140.

and preferably vegetable matters, containing tannin, for instance oa-kbark, nut-galls,

the tannin servingto form with glue or gelatinous matters a substance, which will have an advantageous effect on the igniting compos1t1on.

It has however, been proved, that all I vegetable matters will not suit the purpose, because it is of very great importance, that the matter used have oertainproperties not found in any of the vegetable matters, .proposed in the Smith patent.

The object of the present invention is to substitute part of the glue, as a component in the igniting composition of matches, with an ingredient which, by a: special grinding process can be ground into an extraordinarily fine state. The substance referred to is the bark of Pinus Sihgestris,

which containing practically .no tannin nevertheless serves as a good binder on 'account of its percentage of] resinous sub.-

stances can be dispensed with in an essential degree. Moreover the material (bark from P'mus Siloestm's) when 1n finely divided and purified state has a property of stillgreater the powder finally obtained has a net weight of 24. lbs. per cub. foot when loosely filled in a vessel. The air inclosed in the cells of the bark giving the effect, that the comstance, so that the expansive gluey subi bustion takes place in a very quiet'and secure but at the same time powerful way. By addingmore orless of the powder of pinebark the infiammability of the igniting composition may be regulated in a very convenient and safe way.

What is claimed as new is V 1. In the manufacture of ignitingcomposition for matches, the substituting of" part of binding materials hitherto usedas part of the igniting composition for matches by the powder of tree bark which in every respect has the properties for substituting gluey substances, and at the same time'supplying the igniting composition with air, for the purpose set forth.

2. In the manufacture of igniting composition for matches, the substituting of part of binding materials hitherto used as part of the igniting composition formatches by the powder of bark from Pz'ams Silvestris as and for the purpose set forth. L

8. In an igniting composition for matches,

binding material including a resinous sub stance in powdered form and having air filled cells. 7

4. In the manufacture of igniting composition for matches, the substitution of part of the binding materials heretofore used, by resinous bark divided into fine state Without destroying air filled cells of the OLOF JONATHAN MELLGREN, 

